Results 61 to 70 of about 86,518 (263)

Intersection theory, relative cohomology and the Feynman parametrization

Journal of High Energy Physics
We present a novel approach for loop integral reduction in the Feynman parametrization using intersection theory and relative cohomology. In this framework, Feynman integrals correspond to boundary-supported differential forms in the language of relative
Mingming Lu, Ziwen Wang, Li Lin Yang
doaj   +1 more source

Logarithmic forms and differential equations for Feynman integrals

Journal of High Energy Physics, 2020
We describe in detail how a d log representation of Feynman integrals leads to simple differential equations. We derive these differential equations directly in loop momentum or embedding space making use of a localization trick and generalized unitarity.
Enrico Herrmann, Julio Parra-Martinez
doaj   +1 more source

Universal Entanglement and an Information‐Complete Quantum Theory

Advanced Physics Research, EarlyView.
This Perspective summarize an informationcomplete quantum theory which describes a fully quantum world without any classical systems and concepts. Here spacetime/gravity, having to be a physical quantum system, universally entangles matter (matter fermions and their gauge fields) as an indivisible trinity, and encodes information‐complete physical ...
Zeng‐Bing Chen
wiley   +1 more source

End-point singularities of Feynman graphs on the light cone

, 2002
We show that some Lorentz components of the Feynman integrals calculated in terms of the light-cone variables may contain end-point singularities which originate from the contribution of the big-circle integral in the complex k_ plane.
Anisovich, Brodsky, Burkardt, Cardarelli, Chang, D. Melikhov, de Melo, Demchuk, Frankfurt, Frankfurt, Frederico, Langnau, Lepage, Melikhov, Melikhov, Mustaki, S. Simula, Sawicki, Simula, Yan   +19 more
core   +2 more sources

α‐Al2O3 Networks on MLG Membranes for Continuous Lithium Ion Extraction from Artificial Sea Water with Enhanced Selectivity and Durability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An α‐Al2O3‐decorated multilayer graphene membrane enables highly selective lithium ion extraction from artificial seawater via electrodialysis. The confined ion channels and competitive ion transport dynamics enhance lithium selectivity, achieving 88.9% purity and 88.6% recovery over three extraction cycles while maintaining stable ion flux.
Dae Yeop Jeong, Daechan Ji, Won Jun Chang, Yelim Kim, Hyun Cheol Yun, Suhee Jang, Lia Saptini Handriani, Hoonkyung Lee, Won Il Park   +8 more
wiley   +1 more source

Feynman integrals: Synergies between particle physics and gravitational waves [PDF]

EPJ Web of Conferences
Feynman integrals are essential for computing scattering amplitudes. Linear relations among these integrals, through Integral-By-Parts (IBP) identities, reduce them to a smaller set of independent integrals, known as master integrals (MIs). In twisted de-
Mandal Manoj Kumar
doaj   +1 more source

Reply to comment on "Lost in translation: topological singularities in group field theory"

, 2011
In [1, arXiv:1102.1844] the author disputes the conclusion of our paper [2, arXiv:1006.0714]. He claims that the Feynman graphs of three dimensional group field theory always represent pseudo manifolds. However, [1] uses a different definition for pseudo
Gurau, Razvan
core   +1 more source

Feynman integrals with absorbing boundaries [PDF]

Physics Letters A, 1998
4 pages ...
Marchewka, A., Schuss, Z.
openaire   +2 more sources

Reprogrammable All‐Photonic Molecular Logic With Ln3+ Luminescent Hybrids in Solid State

Laser &Photonics Reviews, EarlyView.
Mario P. de‐Saralegui et al. report an Eu3⁺/Tb3⁺‐doped organic–inorganic hybrid material that enables multiple reprogrammable logic operations using only physical stimuli. Additionally, this solid‐state, all‐photonic platform represents the first example in the literature performing reversible Feynman logic operations, marking a major step toward ...
Mario P. de‐Saralegui, Lianshe Fu, Albano N. Carneiro Neto, Carlos D. S. Brites, Miguel A. Hernández‐Rodríguez   +4 more
wiley   +1 more source

Relationships among transforms, convolutions, and first variations

International Journal of Mathematics and Mathematical Sciences, 1999
In this paper, we establish several interesting relationships involving the Fourier-Feynman transform, the convolution product, and the first variation for functionals F on Wiener space of the form F(x)=f(〈α1,x〉,…,〈αn,x〉),                                 
Jeong Gyoo Kim, Jung Won Ko, Chull Park, David Skoug   +3 more
doaj   +1 more source